PiTherm

PiTherm is a docker-compose service built for Raspberry Pi. With $15 in hardware (in addition to the Pi), PiTherm turns your Pi into a smart thermostat that can be controlled using Siri with Homebridge or on your smartphone with the built-in web interface. Additionally, PiTherm can be configured to detect the presence of your smartphone and set your AC or furnace to a more energy efficient set-point when you're not home.

Steps to Install (from rasbian):

• install docker and docker-compose
• ./prep_host.sh
• reboot
• docker-compose up -d
• ./seed_db.sh

Config

• Modify env vars in the .env file
• Create your homebridge config and plugins named:
  • ./homebridge/plugins.txt
  • ./homebridge/package.json

Hardware

• Requires 3 relays driven by 3 GPIO pins to control heat/cool/fan.
  • by default, driven on GPIO pins 22 (heat), 23 (fan), and 25 (cool)
  • can be found for $8
• Uses $3 1wire temperature sensor (ds18b20)
  • connected via the 1wire GPIO pin

Troubleshooting

• If PiTherm cannot see the temperature sensor, you may need to update your firmware:
  • sudo apt update && sudo apt upgrade
  • sudo apt install rpi-update
  • sudo rpi-update

Contact

• Paul Jordan @ paullj1[at]gmail[dot]com